Franklin Roosevelt actually said...
The base salary of the Chairman shall be $10,000 a year, except that if the Chairman shall at the same time hold any other paid position in the service of the United States, he shall receive no additional remuneration for acting as Chairman of the Board.
Context
Executive Order 7003—Amendment of Executive Order No. 6700, of May 4, 1934, Relating to the Central Statistical Board
04/07/1935